什么时候ChirpStack下发MAC命令NewChannelReq

BeyondDream

如图所示，当LoRaWAN Device发送adr_ack_req:true后，ChirpStack下发MAC命令NewChannelReq



ChirpStack下发信道3/4/5给Device做为NewChannel



Device回应信道3/4/5可做为NewChannel



ChirpStack下发信道6/7给Device做为NewChannel



Device回应信道6/7可做为NewChannel

参考《ABP device get NewChannelReq after adr_ack_req:true every 8 uplinks Chirpstack V4 eu868》  
https://forum.chirpstack.io/t/abp-device-get-newchannelreq-after-adr-ack-req-true-every-8-uplinks-chirpstack-v4-eu868/16524